I am thinking of putting a Vera Lite into our vacation home. All of my experience thus far has been with my Vera3, which is quite stable and has never required a reboot for reasons other than user initiated.

Is the Vera Lite just as stable? Can I count on it to provide similarly decent range and system stability? I won't be able to do local reboots for extended periods of time ...

You might want to consider a setup that power cycles every night if a hard reboot will be very inconvenient. The only stability problem I have with my vera light (UI5) is the USB log file system becoming corrupt every few month. Without the added USB for logging my vera light is reliable.